



CAS Number: 4759-48-2
Isotretinoin
Appearance: Yellow crystalline powder
Quality Index Standard Results
Identification: Rule of USP26 Conforms
Organic volatile impurity: Rule of USP26 Conforms
Loss on drying: ¡Ü0.5£¥ 0.1%
Residue on ignition: ¡Ü0.1£¥ 0.03%
Heavy metals: ¡Ü0.002% <0.002%
Limit of Tretinoin: ¡Ü1.0% 0.3%
Assay: 98--102% 99.2%
Conclusion: The Specification conforms to the rule of USP26.
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